4087. pikrainó
Lexical Summary
pikrainó: To make bitter, to embitter, to exasperate

Original Word: πικραίνω
Part of Speech: Verb
Transliteration: pikrainó
Pronunciation: pik-rah'-ee-no
Phonetic Spelling: (pik-rah'-ee-no)
KJV: be (make) bitter
NASB: made bitter, embittered, make bitter
Word Origin: [from G4089 (πικρός - bitter)]

1. to embitter
{literally or figuratively}

Strong's Exhaustive Concordance
embitter.

From pikros; to embitter (literally or figuratively) -- be (make) bitter.

see GREEK pikros

NAS Exhaustive Concordance
Word Origin
from pikros
Definition
to make bitter
NASB Translation
embittered (1), made bitter (2), make...bitter (1).

Thayer's Greek Lexicon
STRONGS NT 4087: πικραίνω

πικραίνω: future πικράνω; passive, present πικραίνομαι; 1 aorist ἐπικρανθην; (πικρός, which see);

1. properly, to make bitter: τά ὕδατα, passive, Revelation 8:11; τήν κοιλίαν, to produce a bitter taste in the stomach (Vulg.amarico), Revelation 10:9f.

2. tropically, to embitter, exasperate, i. e. render angry, indignant; passive, to be embittered, irritated (Plato, Demosthenes, others): πρός τινα, Colossians 3:19 (Athen. 6, p. 242 c.; ἐπί τινα, Exodus 16:20; Jeremiah 44:15 (); 1 Esdr. 4:31; (ἐν τίνι, Ruth 1:20)); contextually equivalent to to visit with bitterness, to grieve (deal bitterly with), Job 27:2; Macc. 3:7. (Compare: παραπικραίνω.)

Topical Lexicon
Root and Range of Meaning

Pikrainō centers on the transition from what is palatable to what is distasteful, whether in waters, prophetic experience, or human temperament. Scripture employs the verb to describe both literal bitterness (Revelation 8:11) and the souring of the inner life (Colossians 3:19), reminding readers that sin and judgment corrupt what God designed to be sweet.

Literal Bitterness: Divine Judgments in Revelation

In Revelation 8:11, the third trumpet unleashes a celestial object named Wormwood. “A third of the waters turned bitter, and many people died from the bitter waters”. The verb ἐπικράνθησαν conveys catastrophic reversal: life-sustaining springs become lethal. The scene recalls Exodus 15:23 and Jeremiah 9:15, where bitter water signified covenant breach. John’s vision amplifies that motif, portraying eschatological judgment in which the created order itself turns against persistent unbelief.

Prophetic Ministry: The Sweet-and-Bitter Scroll

When John is told, “Take it and eat it… it will turn your stomach bitter” (Revelation 10:9), the verb πικρανεῖ predicts an internal reaction rather than external punishment. Revelation 10:10 follows: “When I had eaten it… my stomach turned bitter.” The message of God tastes sweet because it is truth, yet it produces distress because it announces woes. Pikrainō thus captures the emotional cost of bearing God’s revelations: proclamation brings joy in obedience but grief over impending judgment. The pattern mirrors Ezekiel 3:1-14 and illustrates that authentic ministry embraces both delight in God’s word and sorrow over human rebellion.

Figurative Bitterness: The Internal Poison of Resentment

Colossians 3:19 warns, “Husbands, love your wives and do not be harsh with them”. Paul applies πικραίνεσθε to family life, prohibiting the slow acid of resentment that corrodes marital unity. The verse complements Hebrews 12:15, which cautions against “any root of bitterness,” and shows that bitterness is not a trivial personality flaw but a spiritual toxin that contradicts Christlike love.

Pastoral and Ethical Implications

1. Judgment and Mercy: Revelation’s bitter waters urge believers to flee idolatry while there is time; God’s warnings are acts of mercy meant to lead to repentance (Romans 2:4-5).
2. Prophetic Integrity: Those who handle Scripture must expect bittersweet results—joy in divine fellowship yet grief over the lost. Ministry training should include preparing hearts for that tension.
3. Marriage and Community Health: Colossians 3:19 identifies harshness as embitterment, not merely anger. Christian households are to showcase the gospel; unchecked bitterness nullifies this witness (Ephesians 4:31-32).

Historical Reception

Early commentators such as Andreas of Caesarea linked the Wormwood trumpet to specific waves of persecution, while Reformers viewed it as a symbol of corrupt teaching. In every era the verb’s force has reminded the church that doctrinal error and moral failure alike produce a bitterness that spreads.

Theological Reflections

Bitterness, whether physical or spiritual, testifies to the moral fabric of creation: disobedience introduces disorder, whereas obedience preserves sweetness. Christ drank the bitter cup (Matthew 26:39) so that redeemed hearts may overflow with living water (John 7:38). Consequently, believers are called to expel resentment, proclaim hard truths in love, and await the restoration when “there will be no more curse” (Revelation 22:3).

Practical Exhortations for the Church

• Guard worship and doctrine, lest corruption turn living waters bitter.
• Embrace the full counsel of God; expect both honey and bile in prophetic obedience.
• Cultivate forgiveness and gentle speech in homes and congregations, rooting out every sprout of resentment before it flowers into sin.

Related Words and Concepts

πικρία (bitterness, Ephesians 4:31), χολή (gall, Matthew 27:34), ἄψινθος (wormwood, Revelation 8:11); Old Testament parallels: marah (bitter, Exodus 15:23), merorim (bitterness, Isaiah 38:15).

Through four New Testament occurrences, pikrainō summons readers to heed warning, bear truth, and preserve the sweetness of grace in every relationship and context.

Forms and Transliterations
επικρανθη επικράνθη ἐπικράνθη επικρανθησαν επικράνθησαν ἐπικράνθησαν μὴ πικραινεσθε πικραίνεσθε πικραινομένη πικράναί πικράνας πικρανει πικρανεί πικρανεῖ πικρανθήσονται πικρασμώ epikranthe epikranthē epikránthe epikránthē epikranthesan epikranthēsan epikránthesan epikránthēsan me mē pikrainesthe pikraínesthe pikranei pikraneî
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Interlinear GreekInterlinear HebrewStrong's NumbersEnglishman's Greek ConcordanceEnglishman's Hebrew ConcordanceParallel Texts
Englishman's Concordance
Colossians 3:19 V-PMM/P-2P
GRK: καὶ μὴ πικραίνεσθε πρὸς αὐτάς
NAS: your wives and do not be embittered against
KJV: be not bitter against them.
INT: and not be bitter against them

Revelation 8:11 V-AIP-3P
GRK: ὑδάτων ὅτι ἐπικράνθησαν
NAS: because they were made bitter.
KJV: because they were made bitter.
INT: waters because they were made bitter

Revelation 10:9 V-FIA-3S
GRK: αὐτό καὶ πικρανεῖ σου τὴν
NAS: it and eat it; it will make your stomach
KJV: thy belly bitter, but it shall be
INT: it and it will make bitter your

Revelation 10:10 V-AIP-3S
GRK: ἔφαγον αὐτό ἐπικράνθη ἡ κοιλία
NAS: it, my stomach was made bitter.
KJV: my belly was bitter.
INT: I did eat it was made bitter the stomach

Strong's Greek 4087
4 Occurrences


ἐπικράνθη — 1 Occ.
ἐπικράνθησαν — 1 Occ.
πικραίνεσθε — 1 Occ.
πικρανεῖ — 1 Occ.

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